188  * return the pointer to the entry and, if requested, its old value.
192  * @old if not NULL, will be written with the old value of the DAT table
195 …void *dat_get_and_invalidate(pgd_t *pgtable, void *vaddr, enum pgt_level level, unsigned long *old)  in dat_get_and_invalidate()  argument
201 	if (old)  in dat_get_and_invalidate()
202 		*old = *(unsigned long *)ptr;  in dat_get_and_invalidate()
253 	unsigned long old, *res;  in set_dat_entry()  local
255 	res = dat_get_and_invalidate(pgtable, vaddr, level, &old);  in set_dat_entry()
257 		cleanup_pmd((pmd_t *)&old);  in set_dat_entry()
259 		cleanup_pud((pud_t *)&old);  in set_dat_entry()
287 	unsigned long old, *ptr;  in protect_dat_entry()  local
289 	ptr = dat_get_and_invalidate(table_root, vaddr, level, &old);  in protect_dat_entry()
290 	*ptr = old | prot;  in protect_dat_entry()
295 	unsigned long old, *ptr;  in unprotect_dat_entry()  local
297 	ptr = dat_get_and_invalidate(table_root, vaddr, level, &old);  in unprotect_dat_entry()
298 	*ptr = old & ~prot;  in unprotect_dat_entry()